2007 GMC trucks stock navigation/radio for sale in Abingdon, Maryland

$500

I am selling a stock navigation/radio that fits the following 2007 models: avalanche, Tahoe, suburban, Yukon and Yukon xl, Denali, and Yukon xl Denali. I am asking 500$ or best offer it is brand new in the box and sells at the dealership for 1200$ it has the manual, cables, and the United states and Canada maps disc for the navigation. if interested please call rusty

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thanks.